The Prairie Eagle Mine in Illinois is the largest coal mine of Knight Hawk Coal


ard coal is temporarily stored in stockpiles and then continuously fed to be processed, as needed. Te design of the depositories

must ensure constant filling and reliable emptying. Te required capacity is determined based on the incoming and outgoing conveying flow. Different stacking and reclaiming options as well as various layouts for the stockpiles are also needed. Beumer Group provides the engineering for handling stockpiles and offers the required components to coal mine operators, such as stackers and reclaimers.

Expert provides engineering of stockpiles for the coal industry Te company offers a comprehensive


product and system solutions portfolio to customers from the coal mining industry. Conveying technology includes closed pipe conveyors and open troughed belt conveyors that can be adjusted to the respective situation. As a system supplier, it also provides extensive know-how and the necessary components for storing hard coal, e.g. stackers and bridge reclaimers. “We support our customers immediately from the design phase,” says Andrea Prevedello from Beumer Group, Germany. Drone technology is used more and

Beumer Group provides a suitable stacker for stacking the coal 36

more frequently during project planning, implementation and documentation to optimise the design phase. Te recorded aerial photos are rectified with regard to their perspective and evaluated photogrammetrically. Te software calculates a point cloud to generate 3D models from the two-dimensional views, i.e. digital terrain models. Stockpiles can now be greenfield and brownfield developments. “We have some major customers with

very interesting projects in this sector,” explains Prevedello. Tis most certainly includes Prairie Eagle Mine in Illinois, the largest coal mine of Knight Hawk Coal. Tis is one of the most efficient underground mining plants in the USA. Tey produce approximately five million tons of coal annually, of which more than 80 % is processed and delivered in Prairie Eagle.” Management was looking for a more sustainable operating solution. “We provided an overland conveyor that transports the coal from the mine to the main processing plant,” describes Prevedello. “Our conveyor helps the company to considerably reduce its ecological footprint. With this technology, Knight Hawk can significantly reduce its long-term

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